org.nakedobjects.metamodel.facets.propparam.validate.mandatory
Class MandatoryFacetDefault

java.lang.Object
  org.nakedobjects.metamodel.facets.FacetAbstract
      org.nakedobjects.metamodel.facets.MarkerFacetAbstract
          org.nakedobjects.metamodel.facets.propparam.validate.mandatory.MandatoryFacetAbstract
              org.nakedobjects.metamodel.facets.propparam.validate.mandatory.MandatoryFacetDefault

All Implemented Interfaces:

InteractionAdvisor, InteractionAdvisorFacet, Facet, MarkerFacet, MandatoryFacet, ValidatingInteractionAdvisor

public class MandatoryFacetDefault
extends MandatoryFacetAbstract

Whether a property or a parameter is mandatory (not optional).

For a mandatory property, the object cannot be saved/updated without the value being provided. For a mandatory parameter, the action cannot be invoked without the value being provided.

In the standard Naked Objects Programming Model, specify mandatory by omitting the @Optional annotation.

Field Summary

Fields inherited from interface org.nakedobjects.metamodel.consent.InteractionAdvisorFacet

NOOP

Constructor Summary

MandatoryFacetDefault(FacetHolder holder)

Method Summary

boolean	isInvertedSemantics() Indicates that the implementation is overridding the usual semantics, in other words that the FacetHolder to which this Facet is attached is not mandatory.
boolean	isRequiredButNull(NakedObject nakedObject) If not specified or, if a string, then zero length.

Methods inherited from class org.nakedobjects.metamodel.facets.propparam.validate.mandatory.MandatoryFacetAbstract

invalidates, type

Methods inherited from class org.nakedobjects.metamodel.facets.FacetAbstract

alwaysReplace, facetType, getFacetHolder, getIdentified, getUnderlyingFacet, isDerived, isNoop, setFacetHolder, setUnderlyingFacet, toString, toStringValues, unwrapObject, unwrapString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.nakedobjects.metamodel.facets.Facet

alwaysReplace, facetType, getFacetHolder, getUnderlyingFacet, isDerived, isNoop, setFacetHolder, setUnderlyingFacet

Constructor Detail

MandatoryFacetDefault

public MandatoryFacetDefault(FacetHolder holder)

Method Detail

isRequiredButNull

public boolean isRequiredButNull(NakedObject nakedObject)

If not specified or, if a string, then zero length.

isInvertedSemantics

public boolean isInvertedSemantics()

Description copied from interface: MandatoryFacet

Indicates that the implementation is overridding the usual semantics, in other words that the FacetHolder to which this Facet is attached is not mandatory.